diff options
Diffstat (limited to 'bpod/json.go')
| -rw-r--r-- | bpod/json.go | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/bpod/json.go b/bpod/json.go index a05c6fc..8829f36 100644 --- a/bpod/json.go +++ b/bpod/json.go @@ -26,6 +26,25 @@ type List struct { Photos []BPOD `json:"images"` } +// MarshalJson takes res as input and returns body. This remarshaling +// is required because of a bug. To learn about why this is required, +// remove this function & then run `cetus set bpod -random`. Put a +// `fmt.Println(res, body)` somewhere and look at how they differ. res +// will contain a single entry but body will have all 7 entries which +// is bad because body is cached to disk to view later. Look at +// comment in UnmarshalJson func to understand why res has a single +// entry and body has all when random flag is passed. +func MarshalJson(res BPOD) (string, error) { + out, err := json.Marshal(res) + if err != nil { + err = fmt.Errorf("%s\n%s", + "MarshalJson failed", + err.Error()) + } + body := string(out) + return body, err +} + // UnmarshalJson will take body as input & unmarshal it to res, func UnmarshalJson(body string) (BPOD, error) { list := List{} @@ -36,6 +55,15 @@ func UnmarshalJson(body string) (BPOD, error) { return res, fmt.Errorf("UnmarshalJson failed\n%s", err.Error()) } + // If random flag was not passed then list.Photos has only one + // entry and that will get selected because it's only one, in + // that case this rand.Intn wrap is stupid but when user + // passes the random flag then this wrap will return a single + // entry, which means we don't have to create another func to + // select random entry but this means that body and res are + // out of sync now, because res has only one entry but body + // still has all entries so we Marshal res into body with + // MarshalJson func. res = list.Photos[rand.Intn(len(list.Photos))] return res, nil } |